Air control for drain tile



Nov. 13 1923. ,474,285

J. PERKINS AIR CONTROL FOR DRAIN TILE Filed March 21, 1921 INVENTOR. JOHN Pf@ KMS.

` ATTORNEY.

Patented Nov. 13, 1923.

PATENT JOHN PERKINs, `or LIBERTY, INDIANA.

attira AIRV CONTROL ron DRAIN frits.

Application led March 21, 1921. Serial No. 453,931.

To all 11i/0m it may concern.'

Be it known that L'JoIIN- PERKINS, a citizen of the United States, residing at Liberty, in the county'of Union and State of Indiana, have inventedfcertain new and useful mprovementsinl Air Controls for Drain Tile, of which the 'following is a specification.

This invention relates to air control for drain tile, and the main feature of the in- -vention is the provision of means for excluding air from the'tilewhen a large amount of water is flowing therethrough so as to prevent theair from displacing the water, consequently the full capacity of the tile may be used for carrying the water.

A further feature of the invention is the provision of vents in the lengthfofthe drain for permitting air to readily'enter the drain at timesv when there is no water in the drain so as to aerate the soil and force moistureV towards the top of the ground, said vents being so arranged as to provide drain openings at points where bodies of water are inclined to rapidly col lect, as after a heavy rain, thereby more rapidly removing the water from the top of the soil.

Other objects andv advantages will be hereinafter more fully set forth and pointed out in the accompanying specification.

In ythe accompanying drawings,

Figure l is a sectional view showing a tile drain with the air, controlling means attached thereto, and

Figure 2 is a vertical longitudinal sectional view through the air controlling means.

Referring to the drawings in which similar reference numerals designate corresponding parts throughout the several views, 1 indicates a drain which is preferably formed of tile, such vas are constructed of burned clay, cement or the like and used for draining soil, especially on farms, said drain being placed a suitable distance below the surface of the ground and covered over, the water entering the soil being attracted to the tile to some extent' by suction created by the owing water. Ithas been found, however, that air in the ordinary drain dis places a certain amount of the water, consequently reducin the carrying capacity of the drain, and In order to overcome `this objectionable feature insert sections 2 are placed at intervals along the line ofv the nearly but not quite balanced.

drain, each insert section serving as one of the tile, and in the upper wall of the insert sec-tion is Vformed a cavity 3 by bowing up the wall of the insert section at this point,

.and in said cavity is pivotally mounted a valve 4, the pivot point 5 for the valve being so positionedrthat the'valve will be The end of the valve towards the outlet of the drain is provided with an upwardly extending flange 6 which when the water strikes the under face kof the valve moves upwardly and contacts with the wall of the cavity, thereby forming a partial seal in the drain atfthis point and preventing air from passing upwardly through the drain from the outlet end thereof. lAlso formed in each insert section, and preferably in therear of the valve, isy an opening 7 which is sur- 75 rounded by a neck 8 and over said neck is positioned a pipe section 9, said pipe sec` tion extending upwardly towards the surface of the soil, the upper end of the pipe `section entering a basin 10. The wall of the basin 10 is preferably constructed of cement and asthe upper end of the basin projects slightly above the surface of the ground said wall is so inclined and shaped and so reinforced that it will not be easily broken by being struck by farm implements, f the implements glancing ofi and consequently readily passing around the basin. The major portion of the basin is buried in the ground and foreign particles are prevented from entering the basin from the upper end` by extending rods l1i Vacross the opening in the upper end of the basin. -The upperv end of the pipe section 9 preferably extends a sufficient distance above the lower end of the basin l0 so that any foreign particles that mightenter the basin will be caught or trapped at this point, consequently they willnot flow into the drain.

Where the drain passes through a low section of land or points where water rapidly collects after a more or less heavy rain, the top of the basin 10 is positioned almost fiush with the top of the soil, consequently the water will flow directly into the basin 10 5 and through the pipe section into the drain, thereby more rapidly carrying off the water.

By providing the vent and preferably placing the same in the rear of the valve any air within the drain after the water has risen sufficiently within the drain to close the valve will flow l out of the vent opening formed by the pipe section and basin, and' as a very limitedv vamount of air can-enter from theopen end `ot the drain the water will till the drain to substantiallyits full capacity. Therey are any number of the vent openings provided `along the length ot the drain and these vents are preferably placed la uniform dis` tance apart each having an adjacent valve so that an excess amount of air will be excluded the full length of the drain, thereby materially incr As soon as the water recedes in the 'drain the'ivalve will open by gravity, the addition-V al weight ot the 6 being suflicient to- 'overbalance the valve and cause that end ot the valve to which the flange is attachedl to descend, although the overbalancing Vweight is not such as will retard the action of the valve when water rises within the Vdrain Yand strikes the under tace ot the valve.v n

By excluding the excess amount ot air Vfrom the drain and permitting` all partsot the drain to iill with water, the suction created by the flowing water willi be greatly increased, consequently the water seeping through the soil will be drawn into the drain from a greater distance than would be possible it the excess amount otair was( not excluded from the drain, and the greater the volume of water in the upper end of the drain the faste-r the water will travel toward the outlet. i

Having thus fullyv described my said in-V vention, what I claim as new and desire to secure by Letters Patent, is:

l. An air controlling means for a drain 'comprising an insert section adapted to replace one member of the'drain, a pipe section extending upwardly from said insert section, a basin surrounding the upper end of said pipe, ,a valve pivotally mounted in said insert section, and means on one end of said valve for preventingk inward passage of air through said drain when the end of jsaid valve is elevated.

n asing the capacitv oit" the drain` for carrying oit the water.

2. An air control 'for drains comprising Va hollow sectionl vinserted inthe line of the dra-in to torni Va part thereof, a vent exv tending from said inserted section to the outer. atmosphere, a valve pivotally mounted in said insert section one end of which is movableupw ardly when influenced by pressure ot' water thereagainst and an upwardiy extendingrilangeon'the valve adapted to be Amoved against the wall of said inserted section when the' end of said valve is raised Jfor preventing the entrance ot air' into the drain above the-water. Y Y

3. An airfcontrol yfor drains comprising a hollow section intersecting and forming a part otf the drain, a pipe projecting upwardly from said insert section and com! municating therewith, a tapered basinrsurrounding the upper end ot said pipe and ex tending upwardly to the surface of the soil, l

4f.. in air kcontrol for drains comprising*- a hollow insert section adapted to intersect and form a part otfsaid drain, an air vent extending''fromV said insert section tothe surta-ceof the soilabove the drain, a valve pivotally/mounted in said insert section, and

a lange'at one end of said valve adapted to engage the wail of the insert section and prevent air from entering the drain when the valve is" closed.

In witness whereof, I have hereunto set my hand and seal at Liberty, lndiana, this 24th day of February, A.l D. Ynineteen hundred and twenty-one.

y JOHN PERKINS. [L 5,] Witnesses: f i

' JOSHUA DAvis,

G. V. YV. PIGMAN. l. 

